Meldahl, E. G. (1956). Geology of the Grassy Butte area, McKenzie County. North Dakota Geological Survey.
Chicago Style (17th ed.) CitationMeldahl, Elmer G. Geology of the Grassy Butte Area, McKenzie County. Grand Forks, N.D.: North Dakota Geological Survey, 1956.
MLA (9th ed.) CitationMeldahl, Elmer G. Geology of the Grassy Butte Area, McKenzie County. North Dakota Geological Survey, 1956.
Warning: These citations may not always be 100% accurate.